Apparatus for cleaning and collecting smoke from foundry chimneys



A. RODRIGUEZ.

APPARATUS FOR CLEANING AND COLLECT ING SMOKE FROM FOUNDRY CHIMNEYS. APPLICATION F-ILED 05c. 14, I920.

1,4=30, 1 1 6; Patente Sept- 26, 1922.

2 SHEETS SHEET I.

A. RODRIGUEZ.

APPARATUS FOR CLEANING AND COLLECTING SMOKE FROM FOUNDRY CHIMNEYS.

APPLICATION FILED DEC. 14, I920. 1,430,1 16. fiept- 26,1922.

2 SHEETS-SHEET 2.

Patented Sept. 26, 1922.

UNETEEE S'I'ATES 1,430,116 rATsNr caries ALBERTO RODRIGUEZ, 0F SANTIAGO, CHILE.

APPARATUS FOR CLEANING AND COLLECTING SMOKE FROM FOUNDRY CHIMNEYS.

Application filed December 14, 1920. Serial No. 430,809.

T 0 all whom it may concern:

Be it known that I, ALBERTO RODRIGUEZ, a citizen of the Republic of Chile, resident at Santiago, Chile, have invented new and useful Improvements in an Apparatus for Cleaning and Collecting Smoke from Foundry Chimneys, of which the following is a specification.

This invention relates to improvements in apparatus for storing the smoke and gases from the chimneys of smelters and other furnaces and recovering valuable or, noxious particles therefrom.

The object of the invention is to provide an improved apparatus for storing such gas and smoke in order to recover valuable metallic or other particles therefrom, which would otherwise be carried off by the smoke and lost.

It is known that some furnaces of this type employ very powerful air ventilators or blowers to force the smoke and gases therefrom and that under such conditions small particles of minerals and fine powder are carried ofi by the smoke and lost.

Myimproved apparatus enables such loss to be avoided and also prevents the air in the neighborhood of such furnaces from being polluted and injuring the health of the inhabitantsof the surrounding country.

In the accompanying drawings:

Figure 1 is a plan of an apparatus adapted for the operation of the process.

Figure 2 is partly a side elevation and partly a vertical sectional view of the same.

Fig. 3 is a detail of the air injecting type.

Figure 4 is a detail sectional view of one of the chambers or smoke receivers and its connections.

Around the chimney of the establishment are constructed the smoke receivers (2) and of any suitable number. On the top (4) of the chimney, the collector A is placed. This collector may be made of iron or steel plates or other suitable material riveted together and lined inside with a coating of refractory and resisting material to protect it against the action of corrosive acids.

Said collector divides itself in two tubes (5) which lead in opposite directions and is provided in its interior with a bafile (6) which serves for the distribution of the smoke to both pipes.

A collector A is placed at a certain height above the chimney and with its bottom por tions being somewhat lower than the mouth.

of the chimney, so that the carrying away of the smoke in the operation of the process may not be disturbed by the wind which may blow from any side, and so that the smoke may rise straight up and come in contactv tional area of said pipes must be greater.

than that of the chimney to avoid congestion of the smoke on its passage towards the receiving chambers.

On the top of the receiving chambers and and on both sides of pipes (*5), centrifugal ventilators are placed. These ventilators blow compressed air into the smoke collector and into the pipes by means of tubes (8) and branch pipes (9) and (10) which lead into the collectorand into the tubes (5) respectively. The upper ends of the pipes 10 are curved and arranged to dis charge-downwardly through the pipes (5) as at 11., I y

The object of this air injection is to constantly clean out the collector and tubes from ground mineral, soot and metallic particles which may adhere to the walls thereof; to produce an artificial draught to force the smoke quickly into the receiving chambers and finally to effect a rapid cooling off of the smoke.

Pipes (5) are provided with valves (12) by means of which the course of the smoke to the chambers may be temporarily cut-off, it being possible to alternate this operation in both tubes so that the removal of the material deposited in the chambers and conduits may be facilitated.

The smoke collector may be placed on top of the chimney in any convenient form whatever, it being preferable to place it on four or more iron plates riveted to the chimney. The stability of the collector and the pipes 5 may be in practice secured by the employment of suitable guys or other means, not here shown.

The smoke goes through tubes (5) to the receiving chambers (2) and (3) which may be made of wood, bricks, concrete or any other suitable material. These chambers receive the smoke and store it and at the same time art as a distributing deposit. When these chambers are filled with smoke, it begins to pass therefrom through (13) which may be of wood or any other suitable material and which serve to carry off the smoke to a long distance. Such pipes 13 may be placed on the level of the ground, suspended, or buried in the ground as may be preferred. These pipeslil have at a cer tain distance registers (14-) to facilitate the cleaning of the residues deposited in them,

and are connected with the upper side of.

chambers 2 and as at 15. Traps (l6) that allow of the extravting of the residues deposited in them are arranged in said chambers E2, 3, and also in storage chambers 18 formed in structures to which said pipes 13 are connected, said chambers allowing of the expansion of the smoke therein.

The smoke pipes (13) lead to a considerable distance from the furnaces and are provided at intervals of about live meters with registers (141-) into which a broom may be collector and downwardly through said pipe, a storage chamber, a pipe leading to said storage chamber from said receiving chamber, a pipe leading from said storage chamber, and traps in said receiving and storage chambers.

2. In combination with a furnace chimney, smoke collector at the top thereof and having return tubes and a battle between said tubes, receiving chambers, pipes leading each from one of the return tubes to one of the receiving chambers, means to create draft upwardly through the chimney and collector and downwardly through said pipes, storage chambers, pipes connecting said storage chambers togetner and also to said receivin chambers, and traps in said receiving chambers and storage chambers.

23. In combination with a furnace chimney, a smoke collector at the top thereof and having return tubes and a battle between said tubes, receiving chambers, pipes leading each tronrone of the return tubes to one of the receiving chambers, means to create dr: ft upi'va rdly through the chimney and collector and downwardly through said pipes, storage chambers, pipes connecting said storage chambers together and also to said receiving chambers and traps in said receiving chambers and storage chambers, said pipes and chambers having means to afford access to the interiors thereof to facilitate the removal of deposits therefrom.

In witness whereof I affix my signature.

ALBERTO RODRIGUEZ.

lVitnesses: I

WAL ER J. TINGLE, F. L. GARUTHER. 

